It is not often I stumble upon a 2 in one and this one was quite odd imo, 2 relatively old Dragon Ball games released on a multicart in 2007 by some chinese outlet, why is beyond me, but yeah... Also, the cartridge build quality is extremely bad, one thing is that is almost never boots and another thing is that it got stuck in my Gameboy, avoid at any cost!

There is really not much to the menu on this one, you select between the two entries and press start to run the game.

The cartridge must me out of China as the chinese writing for "Dragon Ball" scrolls across the screen.

Well since there's only 2 games here, the list is pretty easy to make.

Dragon Ball Z: Goku Hishōden
Digimon: The Guardian of the Universe (Pirate game?)

I don't know really, I am not a Dragon Ball fan so I haven't really played either of them, but one game is supposedly a pirate game?